Incandescent gas-burner.



Patented Mar. 4, IB02.

iin. 694,824.

C. A. ELUHM.

lNCANDESCENT GAS BURNER.

(Application led June 1, 1801,)

(No Model.)

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UNITED STATES" PATENT OFFICE.

CHARLES A. BLUHM, OF MICHIGANACITY, INDIANA.

INCANDESCENT GAS-BURNER.

SPECIFICATION raming part or Letters :Patent No. 694,824, dates. March4, 1902'.

Application filed June l, 19017.. Serial No. 62,761. (No model.) v

circular discharge from the inlets tothe top i or highest point of themantle, and "in con-v nection with these features to provide for aproper circulation and supply of air, whereby the light continueswithout variation as long as the gas is turned on. Failure to recognizethis requirement has resulted in a lack of'success in the constructionin many, if not all, of the incandescent-gas-burners at present on themarket. The reason for this is that the gas in passing through the smallopenings in the the passages to become clogged by corrosion of the gasafter being used a while, and the re sult is a variation in the openingsof the disk. This variation in the sizeof. openings creates a heavierdischarge of gas through the larger openings located, probably, at oneside, and thereby passing the llame to one side of the mantle, andwiththe same regulation of air.

the dame and; heat are carriedv to one side,

a partial and imperfect flame on the opposite side, producing a gloomylight and at times only a partial lighting of the mantle.

It is anobject of my present invention to overcome this objection by theuse andjintroduction of a valve anda valve-seater opening in this disk,said valve being cone-shaped and adapted to be screwed up or down toregulate the' size of the opening and the amount of discharge of thegas, at the same time spreading Athe gas as it discharges through theorifice. My burner is so constructed that should the cone or valvebecome clogged by corrosion it can be easily removed and cleaned 5o andreplaced again for use.

-A still further object of my invention is to disk generally used and onthe market causes causing the mantle .to burn out andgive only.

prevent the momentary explosion resulting from the lightinggof the gas,which is the caso with all of the burners now on the market, and whichexplosion by combustion in lighting the gas weakens and finally destroysthe mantle, an d these results are attained in my present invention by aproper regulation of air-supply,-Whereby the full force of the air inthe air-chamber is maintained and the Ava- 6o riation insupply of air isnot permitted to change the spread of gas issuing through the orice. l,

Vith the foregoing and other objects in view my present inventionconsists is certain novel features of construction and combinations ofparts, which will be hereinafter described and particularly pointed outin the claims.

` In the accompanying drawings, Figure lis 7o a vertical `section takencentrally through my improved burner. Fig. 2 is an enlarged de-v tail insection showing the valve, valve-scat, and connected parts. Fig. 3 is ahorizontal section on the line ai c of Fig. l, and Figs. 4 75 and 5aredetails.

The pillar of the burner comprises a threaded 'thimble l, adapted toscrew on the gas pipe or fixture, and a tube 2, secured thereto. The twoparts may be connected together 8o in any approved manner 5but,preferably,they

lare' screwed together as shown at the nipple 3. The tubevis providedwith a circumfera ential rib Li, which has a double function, one

of which is to conne the air-regulating sleeve 5, which controls theair-openings 6 6 between it and thethimble l, and itsother function.Y

is to provide a seat or bearing for the air-v chamber gallery andmixing-chamber to rest and turn upon. v Vo Proceeding for the present toa brief desoription of the last-named parts, the numeral 7 indicates theair-chamber. This chamber is stamped or otherwise made from thin sheetmetal, preferably in-about. the form indicated in the drawings, it beingprovided with openings in the bottom, as indicated at 8 8, for theentrance of air thereinto. As this chamber supplies air to the orifices6 6, where it commingles with the gas-supply, it Will be termed roo anair-mixing chamber. From the upper end of the air-mixing chamber a tube9 ex tends, and on the upper end of the latter the mixing-chamber 10 ismounted, the tube 9, in other words, thus connecting the air-chamber andmixing-chamber and forming a means of communication between the two.Tube 9 is of a size to just fit the upper end of tube 2,

and to insure adequate frictional contactr therewith the lat-ter tube issplit at the upper end, as indicated at 11, to permit suitable expansionof the upper end of tube 2 to insure this proper friction al engagementof these parts to cause the tube 9 to remain in position when turned orrotated on the pillar.

The numeral 12 indicates the usual gallery, which latter is connected,as indicated, at the top and bottom with parts of the burner, at the topby means of a spider 13 with the mixing-chamber for convenience and thebottom with the top of the air-chamber by means of the cage 14, in whichlatter openings 15 are formed for the admission of air and the insertionof a match or taper for lighting thev gas. Of course the burner could belighted from' above the mantle, if desired. The mantle is indicated at16, it being held in position on the combustion-chamber-by means of thecap 17 and the supporting-arm 18, as is customary. The chimney 19 issupported on the gallery in the usual manner, and arms 2O are providedfor the support of a shade outside of the chimney.

My improved means for regulating the gassupply will now be described.

In the bore of the thimble 1 aplug 21 is tted, it being' held byfrictional contact or otherwise, as the case may be. A shoulder 22limits the inward movement of this plug, whereby gas-chamber 23intervenes between its inner end and the diaphragm 24, formed across theinner or upper end of the thimble. Gas-ducts 25 25 extend through thisplug for supplying the gas-chamber 23 as vfast as the lgas is requiredorvconsumed. From the center of the plug 21 a screw-threaded stem 26extends upwardly through an orifice 27 in the diaphragm 24, the edges ofwhich orifice 27 are beveled or inclined, as indicated at 28, to form avalve-seat.

The numeral 29 indicates a conical valve, which has a screw-threadedbore 30, adapted to turn or screw upon the threaded stem 26, whereby theconical valve is raised or lowered and the tapering lower end 31 of thevalve made to open or close the orifice 27, thus regulating the influxof gas according to the amount of consumption required and-insuring itsentrance in the for-m of an annular head,which is spread outwardly bythe lower taper of the valve preparatory to intermingling with theair-supply in the air-chamber 7, and which air enters through theopenings 6 6 into the pillar to comminglewith the gas and supply oxygento support combustion, its supply being regulated by theair-regulatingsleeve 5, previously alluded to. From the upper end of thevalve 29 a rod 32 extends.

The upper end of this rod is angular in crosssection and has a loosesliding connection through a hole 33 of corresponding shape and made toreceive it in the perforated disk 34, secured at the lower end of themixing-chamber. This disk has the function of a wrench in a sense, or,in other words, it connects the valve 29 with the upper parts of theburner, including the air-chamber, mixing-chamber, connecting-tube, andgallery, in such a Inanner that when these parts, all ot' which rest andare capable of turning on the circumferential rib or bearing 4, areturned or rotated the valve 29 is raised or lowered, as the case may be,to regulate the supply of gas to the burner or to shut it o altogether.From the foregoing the object of the angular formation of the upper endof the rod 32 andthe corresponding slot 33`in the disk 34`will bereadily understood, as the-upper portions of the burner, including theair-chamber, mixingchamber, and gallery, merely rotate upon the rib orseat 4, whereas the valve 29 not only turns, but as it turns is movedendwise up or down as the parts are turned to the right or left. Therotation ofthese parts is limited by the stop 37 on the thimble 1 andthe springhandle 38, which controls the air-regulating sleeve 5, thespring 38 resting and sliding in a notch 39, provided for it in the baseof the air-mixing chamber, this spring 3S being in position at alltimes, whether the sleeve 5 be raised to close or partly close theopenings 6 6 or lowered to strike the-stop when the rotary parts havebeen turned far enough and prevent further movement beyond that point`and, in consequence, further movement of the conical valve. In otherWords, the rotary parts of the burner are limited by the stop 37 and thespring 3S to a turn slightly less than a complete rotation, suchadjustment of the valve being sufficient to meet the requirements vofthe burner.

From the foregoing it willbe seen that all the foregoing objects of myinvention are accomplished and fulfilled by the construction described,and, furthermore, it will be un- -derstood that the parts may beseparated with the utmost convenience whenever occasion may require. Theupper portion ofv the burner carrying the mantlemay be lifted from thepillar without removing the pillar from the `gas pipe orV fixture, orthe entire burner may be removed from the pipe or fixture by firstunscrewing the thimble 1 therefrom, after which' the pillar is removedfrom the other parts by pullingit therefrom. Then access may be hadftothe valve' 29 by un-l screwing the thimble 1 and tube 2, and the valve29 may be removed by unscrewing it from thevstem 26, and the plug 21 maybe easily forced out of the thimble. In this way all parts which mightrequire cleaning or renewal are made easily accessible and can beremoved, repaired, or renewed at pleasure.

It is evident that`slight changes might be IOO IIO

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made -in the form `and Yarrangeme-ntrof the. several partsdescribedwithout departing from the-spiritand scope of .my invention,and hence I do-not wish to limit myself to the exact construction hereinset forth; but,

' Having thus fully described my invention, what -I claimas new, anddesire to secure by Letters Patent, is-

kl. A gas-burner comprising a fixed and a rotatable portion, theiixedportion comprising a slotted tube and a threaded thim ble adapted to besecured to a gas pipe or fixture and having a gas-'orifice therein, avalveconstructed and adapted to be controlled by the rotatable partofthe burner for regulating the size of said oriice, and an air-regulatingsleeve inountedon the tube foropening and closing the slots in-the tubefor regulating the supf` ply of air to theburner. y

2. A gas-burner comprising a fixed and a rotatable portion, ltheiixedportionl adapted Ato be secured to a gas pipe or fixture and havinga gas-orifice therein, a valve constructed and adapted to becontrolled-by the rotatable part ofthe burner for regulating the size ofsaid orifice, means for-regulating the supply of air to the burner andstop mechanism with which the hand-le of said air-.regulating meansooperates to limit themovement of the rotatable parts of the burner.

3. A gas-burner comprising a iixed and a rotatable portion, the xedportion'having a gas-orifice formed'therein and a valve controlled bythe rotatable part of the burner.

and with which valve said rotatable part has a sliding connection, saidvalve constructed. and adaptedto regulate'the discharge of gasthroughthe orifice. q 4. In a gas-burner, thecombination with a pillarhaving a diaphragm therein, said dia. phragm provided with agas-orifice, and a suit.V

ably-supported threaded stem extending centrally through said orifice,of avalve screwed on the threaded stem` and means for turning.

pillar having a diaphragm therein, said dia.

phragm provided with a gas-oriceand a suitably-supported threadedfstemextending een` trally through the orifice, of aA conical valveVscrewedon the' threadedY stem, .the conical ex terior of thevalveconstructed and adapted to close or regulate the size of thegas-orificey in thediaphragm and also to spread the gas rissuingtherethrough. l

6. `In a gas-burner, the combination with a pillar constructed-andadapted t'o 'screw ona `gas pipe or-xture, a diaphragm extending acrossthe interior of the. pillar and having a gas-orifice formed-thereim'anda plug fitting the bore of the pil-lar, said plug havingagas-- ducttherein, agas-chamber intervening be tween the inner endvof the plug andthe diaphragm, and the plug having a screw-thread.

ed stem thereon which kextends .oentraily through the gas-orifice, of avalve adapted to screw up and down outhe threaded stem lfor Y closing orregulatingthe size lof the gas-crie across the interior ofthepillar andhaving a gas-orifice' formed therein, and a pluglitting` the bore of thepillar, said plughaving agasduct therein, af gas-chamberintervening be,-

tween the inner end of the plug and the diaphragm, and the plug having ascrew-thread-` ed stem thereon whichextends centrally through the gasorice, of a valvehav-ing a conical lower end and a threaded vboreadapting the valve Wherebyto close orregulate the .size of thegas-orice,the conical endof the valve serving as a spreader forthefgasissuing through the orifice.

8. In a gas-burnenthe combinationwitli a. pillar having a gas-oriiiceformed theifeirnof.

a lvalve for closing or rcgulatingthe sizeof said orifice,arotatable-portionof the burner, a diskftherein having lan angularopening andv a rod extending Vfrom the valve loosely through.

said opening whereby the valve is turned with the rotation .of l. therotatable portion of the burner. l

fed to screw on the stem,land means for turn-y 9. In aburnenthecombinationwith apil-lu lar composed of a tube and thimble. remov- ,ablysecured together, the pillar having aydiaphragm therein, said diaphragmprovided with a gasorice, a plugjitted to the bore'of the thimble andprovided with a gas-duct, and

ascrew-threadedstem extending from theV .plug centrally through .thegas-oritceinthe diaphragm, ofV avalve which screws on said: Astem forclosing the orifice or regulatingfthe size thereof.

`l0. In a-burner, thecombination Witha pillar composedota tube. and 1thimloie removably secured together, the Vpillar having a diaphragm ytherein, l. said diaphragm; provided vwith a gas-orice, aplugtted to theboreof .the thimble and provided with a gas-duct, and

a screw-threaded stem extending from .the

plug centrally through the gasforirice inl the',

diaphragm, of a, valve which screws on said slide on the pillar andregulate thesizeof position. f

I-IO

`Stem'ior closing the orice or regulating the. 1 size thereof,thepillar. having air-openings therein, anVair-regulating sleevelmountedto vI2C) 11. .The combination Y.with a pillar compris-V I .ing atubeandthimble, the tube havinga cir-1 ,.cumferential rib formedthereonandprovided with air-openings below. said rib, ofen air: regulatingsleeve .mounted loosely on the pil.-

lar and. coniined inits movements. between the'rib and a projectiononthethimble anda spring-handle yforraising andloweringsaid sleeve., l

f Y12. The

cu mferential rib formed thereon and provided with air-openings belowsaid rib, of an airregulating sleeve mounted loosely on the pillar andconfined in its movements between the rib and a projection on thethimble, a spring-handle for raising and lowering said sleeve and a stopon the pillar which the sp ring is adapted to strike to confine therotary movements of the burner.

13. The combination with a pillar having a stop thereon Aand providedwith air-openings and a gas-orifice, a sleeve for controlling theair-openings, a spring-handle depending therefrom, an air-mixing chambermounted to turn on the pillar and provided with a notch to receive thespring-handle on the sleeve, of a valve constructed and adapted to tnrnwith the air-mixing chamber lor controlling the size of the gas-orificein the-pillar or for closing the latter.

14. The combination with apillar provided with air-openings and adiaphragm having a gas-orifice formed therein, and a valve for closingor regulating the size of said orifice of aconnected air-mixing chamber,mixingchamber and gallery having rotatable connection with the pillarand sliding connection with the valve whereby the latter is operatedwith the rotations of the combined air-mixing chamber, mixing-chamberand gallery.

l5. The combination with a pillar provided with air-openings and adiaphragm having a gas-orifice formed therein, and a valve for closingor regulating the size of said orifice, of an air-mixing chamber, amixing-chamber, a tube connecting said chambers together, fitting thepillar and rotatably connected therewith, a gallery connected with thetube, a disk extending across the mixing-chamber and provided with acentrally-located angular opening and a rod extending from the valve andprovided With an angular portion which has sliding connection with theangular opening in the disk whereby when the rotatable parts are turnedthe valve is raised or lowered.

In testimony whereof I have signed my name to this specication in thepresence of two subscribing witnesses.

CHARLES A. BLUHM.

XVitnesses:

HENRY H. BLUHM, JOHN REGEAN.

